For its newsletter subscribers only, newegg offers the Pioneer Sound Isolating Earphones in Black, model no. SE-NC31C-K, for $99.99. Coupon code "EMCYTZT924" drops that to $49.99 with free shipping. That beats our mention from three weeks ago by $1, and is the lowest total price we could find by $10. These earbud-style headphones actively cancel outside noise and feature 5Hz to 16kHz frequency response, airplane plug adapter, and more. Deal ends November 20.